QGIS API Documentation  3.13.0-Master (5a3b1ced84)
qgsvscrollarea.cpp
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1 /***************************************************************************
2  qgsvscrollarea.cpp
3  ------------------------
4  begin : September 2017
5  copyright : (C) 2017 Sandro Mani
6  email : manisandro at gmail dot com
7  ***************************************************************************/
8 
9 /***************************************************************************
10  * *
11  * This program is free software; you can redistribute it and/or modify *
12  * it under the terms of the GNU General Public License as published by *
13  * the Free Software Foundation; either version 2 of the License, or *
14  * (at your option) any later version. *
15  * *
16  ***************************************************************************/
17 
18 #include "qgsvscrollarea.h"
19 #include <QEvent>
20 #include <QScrollBar>
21 
23  : QgsScrollArea( parent )
24 {
25  setWidgetResizable( true );
26  setHorizontalScrollBarPolicy( Qt::ScrollBarAlwaysOff );
27  setVerticalScrollBarPolicy( Qt::ScrollBarAsNeeded );
28 }
29 
30 bool QgsVScrollArea::eventFilter( QObject *o, QEvent *e )
31 {
32  // This works because QScrollArea::setWidget installs an eventFilter on the widget
33  if ( o && o == widget() && e->type() == QEvent::Resize )
34  setMinimumWidth( widget()->minimumSizeHint().width() + verticalScrollBar()->width() );
35  return QgsScrollArea::eventFilter( o, e );
36 }
QgsVScrollArea(QWidget *parent=nullptr)
QgsVScrollArea.
bool eventFilter(QObject *o, QEvent *e) override
A QScrollArea subclass with improved scrolling behavior.
Definition: qgsscrollarea.h:41